@keyframes nav-menu-from-right {
  from {
    transform: translate3d(200px, 0, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes nav-menu-from-left {
  from {
    transform: translate3d(-200px, 0, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes nav-menu-to-right {
  from {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
  to {
    transform: translate3d(200px, 0, 0);
    opacity: 0;
  }
}

@keyframes nav-menu-to-left {
  from {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
  to {
    transform: translate3d(-200px, 0, 0);
    opacity: 0;
  }
}

@keyframes nav-menu-scale-in {
  from {
    transform: rotateX(-30deg) scale(0.9);
    opacity: 0;
  }
  to {
    transform: rotateX(0deg) scale(1);
    opacity: 1;
  }
}

@keyframes nav-menu-scale-out {
  from {
    transform: rotateX(0deg) scale(1);
    opacity: 1;
  }
  to {
    transform: rotateX(-10deg) scale(0.95);
    opacity: 0;
  }
}

@keyframes nav-menu-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes nav-menu-fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

[data-scope='navigation-menu'][data-part='root'] {
  --arrow-size: 20px;
  --indicator-size: 10px;
  position: relative;
}

[data-scope='navigation-menu'][data-part='list'] {
  all: unset;
  list-style: none;
  display: flex;
}

[data-scope='navigation-menu'][data-part='item'] {
  position: relative;
}

.viewport [data-scope='navigation-menu'][data-part='item'] {
  position: unset;
}

[data-scope='navigation-menu'][data-part='trigger'] {
  padding: 10px 16px;
  font-weight: bold;
  display: flex;
  align-items: center;
  border: 0;
  background: transparent;
  font-size: inherit;
  gap: 4px;
}

[data-scope='navigation-menu'][data-part='link'] {
  padding: 10px 16px;
  font-weight: bold;
  display: block;
  color: inherit;
  text-decoration: none;

  &:hover {
    text-decoration: underline;
  }
}

[data-scope='navigation-menu'][data-part='content'] {
  position: absolute;
  width: max-content;
  left: 0;
  margin-top: 5px;
  border-radius: 10px;
  z-index: 1;
}

[data-scope='navigation-menu'][data-part='root']:not(.viewport) [data-scope='navigation-menu'][data-part='content'] {
  top: 100%;
  padding: 20px;
  background-color: white;
  box-shadow:
    0 10px 100px -20px rgba(50, 50, 93, 0.25),
    0 30px 60px -30px rgba(0, 0, 0, 0.3);

  &[data-state='open'] {
    animation: nav-menu-scale-in 250ms ease;
  }

  &[data-state='closed'] {
    animation: nav-menu-scale-out 250ms ease;
  }
}

[data-scope='navigation-menu'][data-part='root'].viewport [data-scope='navigation-menu'][data-part='content'] {
  top: 0;
  padding: 40px;
  display: grid;
  gap: 20px;
  will-change: transform, opacity;

  background-color: transparent;
  box-shadow: none;

  &[data-motion='from-start'] {
    animation: nav-menu-from-left 250ms ease;
  }

  &[data-motion='from-end'] {
    animation: nav-menu-from-right 250ms ease;
  }

  &[data-motion='to-start'] {
    animation: nav-menu-to-left 250ms ease;
  }

  &[data-motion='to-end'] {
    animation: nav-menu-to-right 250ms ease;
  }
}

[data-scope='navigation-menu'][data-part='viewport'] {
  position: relative;
  top: 0;
  left: 0;
  background-color: white;
  transition:
    width 300ms ease,
    height 300ms ease;
  width: var(--viewport-width);
  height: var(--viewport-height);
  transform-origin: top center;
  overflow: hidden;
  border-radius: 8px;
  box-shadow:
    hsl(206 22% 7% / 35%) 0px 10px 38px -10px,
    hsl(206 22% 7% / 20%) 0px 10px 20px -15px;
  margin-top: var(--indicator-size);

  &[data-state='open'] {
    animation: nav-menu-scale-in 200ms ease;
  }

  &[data-state='closed'] {
    animation: nav-menu-scale-out 200ms ease;
  }
}

[data-scope='navigation-menu'][data-part='viewport-positioner'] {
  position: absolute;
  width: max-content;
}

/* Indicator + Arrow */
[data-scope='navigation-menu'][data-part='arrow'] {
  position: relative;
  top: 4px;
  width: var(--arrow-size);
  height: var(--arrow-size);
  background-color: white;
  rotate: 45deg;
  border-radius: 3px;
}

[data-scope='navigation-menu'][data-part='indicator'] {
  display: flex;
  justify-content: center;
  height: var(--indicator-size);
  z-index: 1;

  &[data-orientation='horizontal'] {
    left: 0px;
    translate: var(--trigger-x) 0;
    top: calc(var(--indicator-size) * -1);
    width: var(--trigger-width);
  }

  &[data-state='open'] {
    animation: nav-menu-fade-in 250ms ease;
  }

  &[data-state='closed'] {
    animation: nav-menu-fade-out 250ms ease;
  }
}

.viewport [data-scope='navigation-menu'][data-part='indicator'] {
  top: unset;
  bottom: calc(var(--indicator-size) * -1);
  transition:
    translate 250ms ease,
    width 250ms ease;
}
